Acoustic coupler



FIG. 1 is a front perspective view of an acoustic coupler showing our new design, wherein a cap of the acoustic coupler is illustrated in an open position;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front side elevational view thereof;

FIG. 4 is a rear side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and

FIG. 8 is a bottom plan view thereof.

FIG. 9 is a rear perspective view of the acoustic coupler, wherein the cap of the acoustic coupler is illustrated in the open position, and wherein the acoustic coupler is attached to an example earpiece.

FIG. 10 is a front perspective view of the acoustic coupler, wherein the cap of the acoustic coupler is illustrated in a closed position;

FIG. 11 is a rear perspective view thereof;

FIG. 12 is a front side elevational view thereof;

FIG. 13 is a rear side elevational view thereof;

FIG. 14 is a right side elevational view thereof;

FIG. 15 is a left side elevational view thereof;

FIG. 16 is a top plan view thereof; and

FIG. 17 is a bottom plan view thereof; and,

FIG. 18 is a rear perspective view of the acoustic coupler, wherein the cap of the acoustic coupler is illustrated in the closed position, and wherein the acoustic coupler is attached to the example earpiece.

The broken lines in the drawings illustrate environmental features and form no part of the claimed design. 

CLAIM The ornamental design for an acoustic coupler, as shown and described. 